diff --git a/utils/tests/gitlab-ci-code-linting.yml b/utils/tests/gitlab-ci-code-linting.yml
index c484f306b..87076e9e6 100644
--- a/utils/tests/gitlab-ci-code-linting.yml
+++ b/utils/tests/gitlab-ci-code-linting.yml
@@ -79,6 +79,7 @@ clang-tidy-diff:
     - git fetch upstream master
     - git diff -U0 upstream/master |
       clang-tidy-diff-14.py -path cmake-cache/ -p1 -quiet
+      -iregex "(contrib|examples|src|scratch|utils)\/.+\.(cpp|cc|cxx|c|h|hpp)"
       1> $CLANG_TIDY_OUTPUT
       2> /dev/null
     - if egrep -A 3 "file not found \[clang-diagnostic-error\]" $CLANG_TIDY_OUTPUT ; then